three
Version:
JavaScript 3D library
20 lines (11 loc) • 462 B
JavaScript
import { normalView } from '../../accessors/Normal.js';
import { float, Fn } from '../../tsl/TSLBase.js';
const getGeometryRoughness = /*@__PURE__*/ Fn( ( builder ) => {
if ( builder.geometry.hasAttribute( 'normal' ) === false ) {
return float( 0 );
}
const dxy = normalView.dFdx().abs().max( normalView.dFdy().abs() );
const geometryRoughness = dxy.x.max( dxy.y ).max( dxy.z );
return geometryRoughness;
} );
export default getGeometryRoughness;